Block fault
30-05-2007, 11:09 PM
#81
PassionFord Post Whore!!
Originally Posted by dave cos4x4
mechanic28
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
1 of them for you an rs500 block is numbered 205
30-05-2007, 11:11 PM
#82
10K+ Poster!!
Thread Starter
I have literally got a shit load left after doing that nova 
NOT a for sale post I might add
I think it might be a fair bit easier and cheaper to look for 420bhp as I imagine you can get that quite easily using a T38, I only need a long studded block as I expect I'll use 150hp of laughing gas max for the strip (that is when I'm comfortable with keeping the engine power alone in a straight line )
NOT a for sale post I might add
I think it might be a fair bit easier and cheaper to look for 420bhp as I imagine you can get that quite easily using a T38, I only need a long studded block as I expect I'll use 150hp of laughing gas max for the strip (that is when I'm comfortable with keeping the engine power alone in a straight line
)
30-05-2007, 11:12 PM
#83
10K+ Poster!!
Thread Starter
Originally Posted by Alps Pacino
Originally Posted by dave cos4x4
mechanic28
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
1 of them for you an rs500 block is numbered 205
30-05-2007, 11:12 PM
#84
Originally Posted by Alps Pacino
Originally Posted by dave cos4x4
mechanic28
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.
if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.
1 of them for you an rs500 block is numbered 205
30-05-2007, 11:16 PM
#85
PassionFord Post Whore!!
why cause the core plugs are smaller???????????????
End of th day its not a 200 block is it, it is a 205 block though and they do crack like the rest of the blocks. I have personally seen more 200 blocks fail than 205 blocks and in a more specraculer way. The most recent was a 200 that had cracked from 1 head bolt into 1 water way out of that water way into the next water way, and that was in both directions
Its purely luck of the draw imo cause lets face it the blocks are now knocking on 20 years old
End of th day its not a 200 block is it, it is a 205 block though and they do crack like the rest of the blocks. I have personally seen more 200 blocks fail than 205 blocks and in a more specraculer way. The most recent was a 200 that had cracked from 1 head bolt into 1 water way out of that water way into the next water way, and that was in both directions
Its purely luck of the draw imo cause lets face it the blocks are now knocking on 20 years old
30-05-2007, 11:22 PM
#86
10K+ Poster!!
Thread Starter
Originally Posted by Alps Pacino
why cause the core plugs are smaller???????????????
End of th day its not a 200 block is it, it is a 205 block though and they do crack like the rest of the blocks. I have personally seen more 200 blocks fail than 205 blocks and in a more specraculer way. The most recent was a 200 that had cracked from 1 head bolt into 1 water way out of that water way into the next water way, and that was in both directions
Its purely luck of the draw imo cause lets face it the blocks are now knocking on 20 years old
End of th day its not a 200 block is it, it is a 205 block though and they do crack like the rest of the blocks. I have personally seen more 200 blocks fail than 205 blocks and in a more specraculer way. The most recent was a 200 that had cracked from 1 head bolt into 1 water way out of that water way into the next water way, and that was in both directions
Its purely luck of the draw imo cause lets face it the blocks are now knocking on 20 years old
split between both water ways as you describe.Is the depth of the bolt holes the same on a 200 block to a 205 block ?
30-05-2007, 11:30 PM
#89
PassionFord Post Whore!!
dave cos4x4
I dont know the spec list of every cossie in existace so i cant coment, do you ???????????? lol
Imo its purely luck of the draw, and in which way is the 200 block stronger
I dont know the spec list of every cossie in existace so i cant coment, do you ???????????? lol
Imo its purely luck of the draw, and in which way is the 200 block stronger
30-05-2007, 11:46 PM
#91
PassionFord Post Whore!!
What i mean though is thicker where etc??????????????
If they offer extra strenght around anywhere other than the head bolt holes then there doesnt seem to be any benefits to be had imo cause this seems to be the only place they fail as far as i have seen.
The whole thing about the 200 block being stronger you have just proved what i am trying to say because your saying it is but dont know why or in what way as i'm guessing your just going off what the "norm" is ie 200 is stronger which seems to be gospal with no one knowing why
If they offer extra strenght around anywhere other than the head bolt holes then there doesnt seem to be any benefits to be had imo cause this seems to be the only place they fail as far as i have seen.
The whole thing about the 200 block being stronger you have just proved what i am trying to say because your saying it is but dont know why or in what way as i'm guessing your just going off what the "norm" is ie 200 is stronger which seems to be gospal with no one knowing why
30-05-2007, 11:54 PM
#92
Alps Pacino
maybe Fords know something as thats why the never used a 'standard' 205 block for the 500's and the 4x4 cars.
why change the blocks.
anyway,if anyone is going big power then they longstud the block,then they may not have the problems with cracking bolt holes.
maybe Fords know something as thats why the never used a 'standard' 205 block for the 500's and the 4x4 cars.
why change the blocks.
anyway,if anyone is going big power then they longstud the block,then they may not have the problems with cracking bolt holes.
31-05-2007, 12:01 AM
#93
PassionFord Post Whore!!
Its all hear say though cause i've heard long studding can actually cause the block to split???????????????
Everyone has a different opinion on thing with no solid evidence, like every tuner has a different idea on how an engine should be specced mapped etc but not 1 of them is wrong its just there way.
It would be nice to know 205 block is only good for ???bhp 200 block i good for ???bhp but like i said you cant cause its luck of the draw imo and there will be 205 blocks out there that are beter than some 200's so would fuck up starting a big hp build on a supposed good 200 block that might be wank.
I'm going on a bit now and i'm even boring myself but i hope you can understand what i'm getting at throught all that drivel
Everyone has a different opinion on thing with no solid evidence, like every tuner has a different idea on how an engine should be specced mapped etc but not 1 of them is wrong its just there way.
It would be nice to know 205 block is only good for ???bhp 200 block i good for ???bhp but like i said you cant cause its luck of the draw imo and there will be 205 blocks out there that are beter than some 200's so would fuck up starting a big hp build on a supposed good 200 block that might be wank.
I'm going on a bit now and i'm even boring myself but i hope you can understand what i'm getting at throught all that drivel
31-05-2007, 07:00 AM
#95
10K+ Poster!!
Thread Starter
I can't see long studding causing a block to crack tbh.
As Mike mentioned ARP Head studs might.
No doubt incorrectly fitted long studs might cause block failure but I still believe the blocks aren't weak, its just the poor engine build that cracks them.
As Mike mentioned ARP Head studs might.
No doubt incorrectly fitted long studs might cause block failure but I still believe the blocks aren't weak, its just the poor engine build that cracks them.
31-05-2007, 10:12 AM
#96
PassionFord Post Troll
When Karl built my 428bhp engine........it was built on the original 205 block...At Karl Suggestion. I know Karl has some reservations on the 200 blocks, but I'll leave that for Karl to explain, as I don't want to say something wrong. But, Karl did tell me on more than one occassion that he has seen more 200 blocks fail than he has 205 blocks.
The 200 block was produced due to the stresses of a 4 x 4 system. A 2wd car will spin it's rear wheels before it starts to put structural stresses through the block, where as a 4wd will wrench the engine causing stresses though the block........so ford added extra strength.
But......and I know Karl has mentioned this........It is possible that the 2wd block was cast, using a better quality material than the 200 block. But has never been able to prove this.
The theory is that the metal used to cast the 205 block was a better material.
In the mean time.........my 428bhp engine is proving VERY reliable, and is now in the hands of Bud-Weis, who I'm sure it using it harder than I did, and it's still totally fine.
What most people forget to do though.....is warm the engine properly before they thrash it.......I've seen Cossie owners start the engine, then go on a full boost thrash down the motorway, or rev the hell out of it, before it's warmed up properly. It's not just a matter of checking the water temp gauge, ..........the whole of the engine goes through heat cycles, and if you don't understand how this works, then your asking for trouble (Cracked Blocks).......you should run/drive the engine for at least 15 - 20 minutes before you use it to it's full potential. Just go to any circuit racing event, and watch the pro's start their engine in the pits, and leave it running for 15 minutes before they had for the start line. The rally cross guys seem to be the people who really understand their engines, particularly the top guys running expensive Cossy lumps. You won't see any of them starting there engines five minutes before they race.
Anyone who starts their cossy and then thrashes it from the word go is asking for trouble.
The 200 block was produced due to the stresses of a 4 x 4 system. A 2wd car will spin it's rear wheels before it starts to put structural stresses through the block, where as a 4wd will wrench the engine causing stresses though the block........so ford added extra strength.
But......and I know Karl has mentioned this........It is possible that the 2wd block was cast, using a better quality material than the 200 block. But has never been able to prove this.
The theory is that the metal used to cast the 205 block was a better material.
In the mean time.........my 428bhp engine is proving VERY reliable, and is now in the hands of Bud-Weis, who I'm sure it using it harder than I did, and it's still totally fine.
What most people forget to do though.....is warm the engine properly before they thrash it.......I've seen Cossie owners start the engine, then go on a full boost thrash down the motorway, or rev the hell out of it, before it's warmed up properly. It's not just a matter of checking the water temp gauge, ..........the whole of the engine goes through heat cycles, and if you don't understand how this works, then your asking for trouble (Cracked Blocks).......you should run/drive the engine for at least 15 - 20 minutes before you use it to it's full potential. Just go to any circuit racing event, and watch the pro's start their engine in the pits, and leave it running for 15 minutes before they had for the start line. The rally cross guys seem to be the people who really understand their engines, particularly the top guys running expensive Cossy lumps. You won't see any of them starting there engines five minutes before they race.
Anyone who starts their cossy and then thrashes it from the word go is asking for trouble.
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